From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sat, 16 Apr 2005 15:20:36 -0700 Subject: Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip! --- Documentation/video4linux/README.cx88 | 69 +++++++++++++++++++++++++++++++++++ 1 file changed, 69 insertions(+) create mode 100644 Documentation/video4linux/README.cx88 (limited to 'Documentation/video4linux/README.cx88') diff --git a/Documentation/video4linux/README.cx88 b/Documentation/video4linux/README.cx88 new file mode 100644 index 00000000000..897ab834839 --- /dev/null +++ b/Documentation/video4linux/README.cx88 @@ -0,0 +1,69 @@ + +cx8800 release notes +==================== + +This is a v4l2 device driver for the cx2388x chip. + + +current status +============== + +video + - Basically works. + - Some minor image quality glitches. + - For now only capture, overlay support isn't completed yet. + +audio + - The chip specs for the on-chip TV sound decoder are next + to useless :-/ + - Neverless the builtin TV sound decoder starts working now, + at least for PAL-BG. Other TV norms need other code ... + FOR ANY REPORTS ON THIS PLEASE MENTION THE TV NORM YOU ARE + USING. + - Most tuner chips do provide mono sound, which may or may not + be useable depending on the board design. With the Hauppauge + cards it works, so there is mono sound available as fallback. + - audio data dma (i.e. recording without loopback cable to the + sound card) should be possible, but there is no code yet ... + +vbi + - some code present. Doesn't crash any more, but also doesn't + work yet ... + + +how to add support for new cards +================================ + +The driver needs some config info for the TV cards. This stuff is in +cx88-cards.c. If the driver doesn't work well you likely need a new +entry for your card in that file. Check the kernel log (using dmesg) +to see whenever the driver knows your card or not. There is a line +like this one: + + cx8800[0]: subsystem: 0070:3400, board: Hauppauge WinTV \ + 34xxx models [card=1,autodetected] + +If your card is listed as "board: UNKNOWN/GENERIC" it is unknown to +the driver. What to do then? + + (1) Try upgrading to the latest snapshot, maybe it has been added + meanwhile. + (2) You can try to create a new entry yourself, have a look at + cx88-cards.c. If that worked, mail me your changes as unified + diff ("diff -u"). + (3) Or you can mail me the config information. I need at least the + following informations to add the card: + + * the PCI Subsystem ID ("0070:3400" from the line above, + "lspci -v" output is fine too). + * the tuner type used by the card. You can try to find one by + trial-and-error using the tuner= insmod option. If you + know which one the card has you can also have a look at the + list in CARDLIST.tuner + +Have fun, + + Gerd + +-- +Gerd Knorr [SuSE Labs] -- cgit v1.2.3